CVE-2023-6683

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2023-6683
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6683.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-6683
Downstream
AZL (2)
BELL (1)
CLSA (1)
DEBIAN (1)
MGASA (1)
OESA (4)
RHSA (2)
RLSA (2)
SUSE (3)
UBUNTU (1)
Related
ALSA (1)
SUSE (3)
Published
2024-01-12T19:01:25Z
Modified
2026-10-16T02:54:07Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Qemu: vnc: null pointer dereference in qemu_clipboard_request()
Details

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6683.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "8100020240314161907.e155f54d"
                        },
                        {
                            "fixed": "8100020240314161907.e155f54d"
                        },
                        {
                            "fixed": "17:8.2.0-11.el9_4"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/qemu/qemu

Affected ranges

Type
GIT
Repo
https://github.com/qemu/qemu
Events
Introduced
f9baca549e44791be0dd98de15add3d8452a8af0
Fixed
11aa0b1ff115b86160c4d37e7c37e6a6b13b77ea
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "6.1.0"
                },
                {
                    "fixed": "8.2.2"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

v6.*
v6.1.0
v6.2.0
v6.2.0-rc0
v6.2.0-rc1
v6.2.0-rc3
v6.2.0-rc4
v7.*
v7.0.0
v7.0.0-rc0
v7.0.0-rc1
v7.0.0-rc2
v7.0.0-rc3
v7.0.0-rc4
v7.1.0
v7.1.0-rc0
v7.1.0-rc1
v7.1.0-rc2
v7.1.0-rc3
v7.1.0-rc4
v7.2.0
v7.2.0-rc0
v7.2.0-rc1
v7.2.0-rc2
v7.2.0-rc3
v7.2.0-rc4
v8.*
v8.0.0
v8.0.0-rc0
v8.0.0-rc1
v8.0.0-rc2
v8.0.0-rc3
v8.0.0-rc4
v8.1.0
v8.1.0-rc0
v8.1.0-rc1
v8.1.0-rc2
v8.1.0-rc3
v8.1.0-rc4
v8.2.0
v8.2.0-rc0
v8.2.0-rc1
v8.2.0-rc2
v8.2.0-rc3
v8.2.0-rc4
v8.2.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6683.json"

Git / gitlab.com/qemu-project/qemu

Affected ranges

Type
GIT
Repo
https://gitlab.com/qemu-project/qemu
Events
Introduced
f9baca549e44791be0dd98de15add3d8452a8af0
Fixed
11aa0b1ff115b86160c4d37e7c37e6a6b13b77ea
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "6.1.0"
                },
                {
                    "fixed": "8.2.2"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

v6.*
v6.1.0
v6.2.0
v6.2.0-rc0
v6.2.0-rc1
v6.2.0-rc3
v6.2.0-rc4
v7.*
v7.0.0
v7.0.0-rc0
v7.0.0-rc1
v7.0.0-rc2
v7.0.0-rc3
v7.0.0-rc4
v7.1.0
v7.1.0-rc0
v7.1.0-rc1
v7.1.0-rc2
v7.1.0-rc3
v7.1.0-rc4
v7.2.0
v7.2.0-rc0
v7.2.0-rc1
v7.2.0-rc2
v7.2.0-rc3
v7.2.0-rc4
v8.*
v8.0.0
v8.0.0-rc0
v8.0.0-rc1
v8.0.0-rc2
v8.0.0-rc3
v8.0.0-rc4
v8.1.0
v8.1.0-rc0
v8.1.0-rc1
v8.1.0-rc2
v8.1.0-rc3
v8.1.0-rc4
v8.2.0
v8.2.0-rc0
v8.2.0-rc1
v8.2.0-rc2
v8.2.0-rc3
v8.2.0-rc4
v8.2.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6683.json"